[media] v4l2-dv-timings: rename v4l2_dv_valid_timings to v4l2_valid_dv_timings

All other functions follow the v4l2_<foo>_dv_timings pattern, do the same for
this function.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

drivers/media/i2c/ths8200.c

@@ -378,7 +378,7 @@ static int ths8200_s_dv_timings(struct v4l2_subdev *sd,
 
 	v4l2_dbg(1, debug, sd, "%s:\n", __func__);
 
-	if (!v4l2_dv_valid_timings(timings, &ths8200_timings_cap))
+	if (!v4l2_valid_dv_timings(timings, &ths8200_timings_cap))
 		return -EINVAL;
 
 	if (!v4l2_find_dv_timings_cap(timings, &ths8200_timings_cap, 10)) {